0675702c62
libcutils' thread local stuff is almost unused already, so let's try harder to prevent new users. (In parallel I'll try to actually move the four existing users off it, so we can actually remove this.) Test: treehugger Change-Id: Ib5445a43cff1f161ce1c7a45959d5b126f6f6980
74 lines
2 KiB
C++
74 lines
2 KiB
C++
/*
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** Copyright (C) 2007, The Android Open Source Project
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**
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** Licensed under the Apache License, Version 2.0 (the "License");
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** you may not use this file except in compliance with the License.
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** You may obtain a copy of the License at
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**
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** http://www.apache.org/licenses/LICENSE-2.0
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**
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** Unless required by applicable law or agreed to in writing, software
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** distributed under the License is distributed on an "AS IS" BASIS,
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** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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** See the License for the specific language governing permissions and
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** limitations under the License.
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*/
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#include <cutils/threads.h>
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// For gettid.
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#if defined(__APPLE__)
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#include "AvailabilityMacros.h" // For MAC_OS_X_VERSION_MAX_ALLOWED
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#include <stdint.h>
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#include <stdlib.h>
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#include <sys/syscall.h>
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#include <sys/time.h>
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#include <unistd.h>
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#elif defined(__linux__) && !defined(__ANDROID__)
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#include <syscall.h>
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#include <unistd.h>
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#elif defined(_WIN32)
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#include <windows.h>
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#endif
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// No definition needed for Android because we'll just pick up bionic's copy.
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#ifndef __ANDROID__
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pid_t gettid() {
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#if defined(__APPLE__)
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uint64_t tid;
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pthread_threadid_np(NULL, &tid);
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return tid;
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#elif defined(__linux__)
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return syscall(__NR_gettid);
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#elif defined(_WIN32)
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return GetCurrentThreadId();
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#endif
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}
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#endif // __ANDROID__
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#if !defined(_WIN32)
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void* thread_store_get( thread_store_t* store )
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{
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if (!store->has_tls)
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return NULL;
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return pthread_getspecific( store->tls );
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}
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extern void thread_store_set( thread_store_t* store,
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void* value,
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thread_store_destruct_t destroy)
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{
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pthread_mutex_lock( &store->lock );
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if (!store->has_tls) {
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if (pthread_key_create( &store->tls, destroy) != 0) {
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pthread_mutex_unlock(&store->lock);
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return;
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}
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store->has_tls = 1;
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}
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pthread_mutex_unlock( &store->lock );
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pthread_setspecific( store->tls, value );
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}
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#endif
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